--- 2.2.14/net/ipv4/tcp_timer.c	Fri Jan  7 18:19:25 2000
+++ /tmp/tcp_timer.c	Mon Jan 10 16:02:14 2000
@@ -173,7 +173,12 @@
 		if (!atomic_read(&sk->sock_readers))
 			tcp_send_ack(sk);
 		else
+		{
+			struct tcp_opt *tp = &(sk->tp_pinfo.af_tcp);
+			if (tcp_in_quickack_mode(tp))
+				printk(KERN_ERR "quickack bit set!!!!\n");
 			tcp_send_delayed_ack(&(sk->tp_pinfo.af_tcp), HZ/10);
+		}
 	}
 }